1920068782444 has 24 divisors (see below), whose sum is σ = 3388914244800. Its totient is φ = 951842653440.

The previous prime is 1920068782441. The next prime is 1920068782447. The reversal of 1920068782444 is 4442878600291.

It is an interprime number because it is at equal distance from previous prime (1920068782441) and next prime (1920068782447).

It is a super-2 number, since 2×1920068782444² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1920068782441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4166317 + ... + 4604164.

It is an arithmetic number, because the mean of its divisors is an integer number (141204760200).

Almost surely, 2^{1920068782444} is an apocalyptic number.

It is an amenable number.

1920068782444 is a deficient number, since it is larger than the sum of its proper divisors (1468845462356).

1920068782444 is a wasteful number, since it uses less digits than its factorization.

1920068782444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8770953 (or 8770951 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 55.

The spelling of 1920068782444 in words is "one trillion, nine hundred twenty billion, sixty-eight million, seven hundred eighty-two thousand, four hundred forty-four".